Hi @egor , @sarahbhord 

You can check below issue at github. It seems that Databricks team is aware that this feature is needed by a lot of users and they're going to add this DAB.

DAB dashboards variable substitution in dataset queries · Issue #1915 · databricks/cli

As of now, you can also try to use workaround suggested by karoldegroot. I guess it's worth a try:

https://github.com/databricks/cli/issues/1915#issuecomment-3364978390